Demountable rim.



J. M. GILBERT.

DEMOUNTABLE RIM. APPLICATION FILED SEPT. 15, 1910. RENEWED APR. 23, 1913.

Patented Nov. 11, 1913.

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WITNESSES:

.ATTOlM/EVS UNITED STATES PATENT OFFICE. f JQBEPH 1!. GILBERT, or 110cm v nihin, riiiw YORK, essmnon, BY unsus ASSIGN- sirmnrs, or ONE-HALF TO THE B. r. ooonnrcn COMPANY, or new YORK, n. z, a conzeomrzon on NEW YonK, our-rovers TO THE ooonrmn TIRE a BUTBBER COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO, AND ONE-FOURTH TO THE.

UNITED STATES TIRE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

- DEMOUNTABLE RIM.

1,07 ,579 Specification of Letters imam. P t t N9 11, {9 3,

Application filed Eeptember 15, 1910, Serial No. 582,121. Renewed April 23, 1913. Serial I0- 73,180-

T a? hr it may concern: 7' tion 1 is further formed with a referably It 1t Jwn that I, Josnrn M. Grnnnwnl continuous flange 4 which extend s substana citizen of the United States, and resident l tially at right angles beyond the inner surof Mount Vernon, lVestchester county, State 3 face of said section'as shown -in Fig. 1 and of New York, have invented certain new j from which project locking members 5.119.?-

and useful Improvements in Demountablc in; locking lugs 6. These locking members Rims, of which the following is a specifica- 1 and lugs extend in a direction parallel with tio I r l the straight portions of the rim -sect -ions';and

My invention relates to pneu'matic' tire lenna'ge and-extend beyond the straight porcarryin rims of the species known as auxtlon of the section 2 when the sections are iliary emountable rims and more particui connected. The section 2 is provided with larly to rims of this kind which are made in spaced projections 7 two circumferential sections capable of be- 5 i h he l king lugs 6 to prevent separaing connected with and disconnected from each other throughthe medium of a movement relatively to each other and known as split dcmountable rims.

The particular object of my invention is i to provide a lock Which is preferably at- 1 tached to one rim section so as not to readily 1 become mislaid and which engages a portion of the other rim section. to prevent any rela tive movement between said sections in the direction necessary to disconnect them so that accidental disengagement of the sections is prevented.

My improvement is further designed to prevent the assembled or complete rim from being pla ed in position on the wheel unless the sections have been actually and firmly locked together; so that the mere fact that said assembled rim may be properly positioned on the wheel is a guarantee that 'the' lock is in operative position.

My invention will be fullv described hereinaftcr and the ftatures ol novelty will be pointed out in the appended claims.

Reference is to be had to the accompanying drawings in Which- Figure 1 represents an inside face view of as much of a split demountable rim as is necessary to illustrate my invention; Fig. 2 is a face view of the look on an enlarged scale and partly in section; Fig. 3 is a vertical section thereof on the line 33 of Fig. 2 and Fig. 4 is a view similar to Fig. 1 showing! a different form of lock.

The auxiliary or dcmountabletire-carrying rim comprises two scctions,'1 and Leach provided with the usual holding means for the tire, which in the particular illustration eomprisesltirc-r tainingflanges 3. :The secallcl with the axis of said rim. These proer-tions 7 are positioned and arranged so that they may be introduced through the space between the ends of the locking lugs 6 and the adjacent locking member 5, and on rotation of the rim sections relatively to j each other in one direction will be moved behind said locking lugs '6 and thus lock the rim sccl ions together. A relative movement of said sections in the opposite direction will cause said projections 7 to be slipped from behind said lugs 6 in which ration of said rim sw'tion by a movement in a direction parallel with the .axis of said rim.

To prevent the rim sections from becoming accidentally disengaged or separated either while the auxiliary rim and its tire.

position on the wheel, I provide the lock Which I will now describe. The said lock or latch member comprises a member or section 8 having a lug or projection 9 arranged 'to extend into a recess formed inone of the locking members A pin 10 extends through said lug and into the walls of the recess and serves to pivotally secure the section or member 8 in position. A second section or member 11 similar to the section or member 8 is rigidly carried by spaced rods 12 which extend through apertures 13 formed in the said section 8. Each rod 12 is provided. at its free end with an enlarge ment or head 14 arranged to reciprocate in a cham'hert 15 in said section or member :8 adjacent. to each aperture 13. The heads .14 are of larger diameter than the-apeltgre flfi tion of the rimsections in a direction parosition no I't-SlSlfilKQ will be interposed to tie sepaadapted to cotiperate are carried in reverse or while in operative and'act as stops .to limit the movement of the section or member 11 in one direction. A coil spring 15 has 1ts oneend located in a socket 16 formed in the sectlon or member 81 and its other end in engagement with the section 11 and serves to return and maintain said section or member 11 in an outward position. The normal distance, that is with the lock in an inoperative position, between the free outer edge of the section 11 and the inner edge of the section or memher 8 is slightly greater than the width of the space between one of the locking members 5 and the adjacent lug 6. The sectlons 8 and 11 are thus pressed toward each other against the tension of the spring;15 when it is desired to lock the rim sections against movement relatively to each other.

lug 6. r 4 I t will thus be seen that after the rim sections have been connected the lock may be swung down into the space between the locking member 5 and the next adjacent q lug 6. In this position the locking member engages one of the projections 7 and locks itself behind the cooperatin lug 6. Any relative movement between t e rim sections in a direction to unlock said'sections will thus be arrested as the one projection 7 is substantially held against such movement and therefore will prevent the remaining projections 7 from being displaced. To disengage the lock, the section 11 is pressed slightly toward the section 8 after which "the entire lock may be swung on its pivot out of its locking position leavin the rim sections free to be moved relatively to each other and disconnected. By makingthe look as described, that is in two sections, movable toward each other, the lock is easily disengaged by hand '-or by means of a suitable tool it rust or dirt has caused a clogging or binding thereof.

I It will be noted that in any but its locking position the lock projects inwardly beyont the inner surface of the rim sections and locking devices and prevents the rim from being placed on the wheel. In other words, if it is attempted to place therim on the wheel with the lock in an inopera,

tive, osition the said lock will abut against the iblly of the wheel and act as an obstruction. It is thus absolutely necessary to secure the lock in operative position before the auxiliary rim can be combined with the. wheel .makmg it impossible to accioperative dentally leave the rim sections unlocked. In its locked position the lock preferably lies flush with the locking members, lugs and projections and does not project beyond the same.

In the form of my invention shown in Fig. 4 the lock hereinbefore described is replaced with a latch 17 pivoted at 18 on the onerim section and having a projection 19 arranged to enter a space between one locking member 5 and the adjacent lug 6. In

its operative position this project-ion engages t e said locking member 5 and also one of projections 7 and locks it behind its cooperating lug 6." The rojection 7 bein on one rim sect-ion and the atch and locfiing member 5 on' the other section relative movement between said sections is absolutely prevented when the latch is in its osition. To unlock the section, the latch 1s simply swu remove the projection 19 tom the space between the locking member 5 and lug 6 or in other words from engagement with the locking member 5 and projection 7. This latch operates in a direction parallel with the inner surface of the rim section and preferably lies flush with the locking member and projections.

Both forms of my invention thus vide a. reliable and easily operated which is preferably connected with one rim section and therefore cannot become lost or misplaced.

A lock substantially the same as the form of m invention as illustrated in Fi s. 1, 2 an 3 of the present drawings is siown and described in my coendin applica tion Serial No. 545,647 fi ed Fe ruary 24, 1910.

Various changes may be made within the scope of the cla ms without departing from the s irit of my invention.

I c aim:

1. The combination of a tire carrying rim comprisin two sections movable relatively to each oticr, means for securing said sections together in a single structure against relative movement in an axial direction ,and

against relative rotative movement in one direction and locking means resilient in a circumferential direction for preventing relative rotative movement of said rim sections in the opposite direction.

2. The combination of a tire carrying rim comprisin two sections movable relatively to each ot er, means for securing said sections together in a sin le structure and locking means on one 0 said sections for preventing said relative movement, said locking means comprising two members mounted to slide-on each other in a circumferential direct-ion.

3. The combination of a tire carrying rim comprising two sections movable relatively on its pivot to ltd to ezi ch other; means for securing said sections together in a single structure, locking means on one of said sections for preventing said relative movement,:=/aid locking means comprising two members movable toward and from each other and a spring for normally pressing said members away from each other. I

4. A lock for split demountable tire carrirns comprising one, member having alug adapted for connection witn a rim section, and provided with apertures, nods siidably mounted in said' apertures'and a second member rigidly secured to said rods.

5. A lock for split demountable tire carrying rims. comprising one member having a lug adaptedfor connection ivith a rim section, and provided with apertures, rods slid ably mounted in said apertures .hnd a second member rigidly secured to said rods, and

Inember rigidly secured to said rods, and means on said rods for limiting the movement thereof in one direction and resilient means having a tendency to press said mem v.loers away from each other.

In testimony whereof I have hereunto set by hand in the presence of two subscribing Witnesses.

JOSEPH M. GILBERT.

\Vitnesses:

JOHN A. KEHLENBECK.

FRITZ ZIEGLER, Jr.

ably mounted in said apertures and a second. 

